function media_selector_settings_page_callback() {

	// Save attachment ID
	if ( isset( $_POST['submit_image_selector'] ) && isset( $_POST['image_attachment_id'] ) ) :
		update_option( 'media_selector_attachment_id', absint( $_POST['image_attachment_id'] ) );
	endif;

	wp_enqueue_media();

	?><form method='post'>
		<div class='image-preview-wrapper'>
			<img id='image-preview' src='<?php echo wp_get_attachment_url( get_option( 'media_selector_attachment_id' ) ); ?>' height='100'>
		</div>
		<input id="upload_image_button" type="button" class="button" value="<?php _e( 'Upload image' ); ?>" />
		<input type='hidden' name='image_attachment_id' id='image_attachment_id' value='<?php echo get_option( 'media_selector_attachment_id' ); ?>'>
		<input type="submit" name="submit_image_selector" value="Save" class="button-primary">
	</form><?php

}